Paper-feeder elevator.



No. 880,647. PATENTED MAR. 3, 1,908. K. B. FLETCHER. PAPER FEEDERELEVATOR.

APPLICATION FILED AU .4. 1 05.

G g 6 SHEETS-SHEET 1.

PATENTED MAR. 3, 1908. K. B. FLETCHER. PAPER FEEDER ELEVATOR.

APPLIUATION FILED AUG. 4. 1905. 6 SHEBTS SHBET 2 No. 880,647. PATENTEDMAR. 3, 1908. K. B. FLETCHER.

` PAPER FEEDER ELEVATOR.

P 0 N AP LI ATIO FILED AUG 4 1905 BBEEETS-SHEET 3.

w w M w L. 6 M Z o am. w 4 22d .1 f f M1 0 c 0% /0 ...w 20.05 2U fl Z WE 5 M T W o0 A .m .Lau/MW Zw C 57 No. 880,647. PATENTED MAR. 3, 1908. K.B. FLETCHER.

PAPER FEEDER ELEVATOR.

APPLICATION FILED AUG. 4. 1905.

6 SHEBTSSHEET 4.

mlmmm m .'No. 880,647. PATENTED MAR. 3, 1908. K. B. FLETCHER.

PAPER FEEDER ELEVATOR;

PPLI T1011 n. A o F ED AUG 4' 1905 e sums-SHEET s.

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PATENTED MAR. 3, 1908. K. E. ELETQEER. PAPER FEEDER ELEVATOR.

-APPLIOATION FILED AUG. 4. 1905.

6 SHEETS-SHEET 6.

UNITED sTATEs PATENT oEEICE.

KIMBALL BROWN FLETCHER, OF LANCASTER, NEW HAMPSHIRE, ASSIGNOR TO UNITEDPRINTING MACHINERY COMPANY, 0F MAINE.

0F BOSTON, MASSACHUSETTS, A CORPORATION y PAPER-FEEDER ELEVATOR.

l Specification of Letters Patent. .ippiimion'lea .iugm 4.1905. sein No.272.714.

Patented March 8, 1908.

To all 'whom 'it ma co'ncern:

Be it known tiat I, KIMBALL BROWN FLETCHER, of Lancaster, in the countyof Coos and State of New Ham shire, have invented certain new and use ulImprovements in Paper-Feeder Elevators, of which the following is aspecification.

This invention relates to a paper feeder elevator.

Figure 1 is a top plan view of a machine constructed in accordance withmy invention. Fig. 2 is a side elevation of the same, showing theelevator platform carrying the grid, and a pile of sheets in position tobe engaged by the paper feeder. view similar to Fig.2, partly section,showing the elevator bed driven up beyond the oint where the grid can beengaged by the atclies and showing the pile of aper nearly depleted.Fig. 4 is a view sim' ar to Fig. 3, showing the grid with its pile ofpaper supported only by the latches and the elevator bed returning onits downward trip for a new su ply of a er. Fig. 5 isa view similar toIFig. 2, shloulfing the arrangement of the parts, yhe ile of paper beingshown by dotted lines. `ig. 6 is a detail view of the screws and nuts bywhich the elevator bed is raised and lowered; Fig. 7 is a detail view ofthe chain that connects the two elevator screws together. Fig. 8 is across-sectional view on the line 8-8 of Fig. 1, showing the 'de-rod andsliding box of the elevator bed. Fig. 9 is asectional view on line 9-9of Fig. 1 showing the screw-shaft and its com lemental lug by which theelevator bed) is adjusted sidewise on the rods and lugs shown in Fig. 8.Fig. 10 is a detail view of a por- .tion of the lower edge of the frontof the framework, sho the latch for holding the front side of the grid,the grid being shown in A dotted lines` and in engagement with the underside of the latchto depress the latch, and in full lines on top of thelatch, the latter being snap ed beneath the, grid. Fig. 11 is a viewsimiliar to Fig. 10, showing the grid and latch just before the grid haspassed up high enought to permit the latch to snap under it. Fig. 12 isa view similar to Fig. 10, showing the atch for holding the rear side ofthe grid. Fig. 13is a detail erspective view of the elevator platformand) one ofthe elevator screws, this view also showing the adjustingscrew to secure the sidewise posi- Fig. 3 is a. .for feeding pickingdevice,

spective view of the grid head and s ats.

. Fig. 1.7,.isa longitudinal sectional view runmngthrough the grid headand one of its slats as the same would appear if taken on the line 17-17of Fig. 15. y

The same letters of reference indicate the same parts inall of thegures. l

. In practice printing machines are provided with a ,feeding mechanism,compris three well-recognized divisions:

the paper into the rinting-press, second: devices for picking tige papersheet by sheet off from a pile and delive it to the feeding mechanism;and third: a evice or elevator for raising piles of paper to the orsheet separator. l In practice the parts are-arranged in the `reverse'order stated; that is to say elevator, lsheet separator, feeding deviceand printingpress. v

My present invention concerns the eleva-v tor mechanism. Thesheet-separating detion of the elevator platform. Fig. 14 is a' portionof the grid Fig. lisa erfirst: mec anism vice 1, the gearing 2 by whichthe same is driven, and the power devices 3 for dri the elevator may beof any preferred construction, and are here shown merely for the sake ofcompleteness.,

The sheet-separating device 1 is sup orted by two columns 4, 4. Theelevator Ined is composed of two side plates 10, 10 each plate formedwitha screw-threaded .lug 11 arranged to slide in a complementalvertical guideway 12 in the columns 4. The side plates 10' (see Figs. 1and 8) are held together by means of rods 13, there be' one at each end.Each rod 13 as shown in ig. 8v

is reduced at-its end to form a shoulder, the reduced portion passingthrough a suitable aperture in the plate 10, while a nut 15 pinches theplate between the nut and shoulder formed by the reduced portion. Theside plates 10 are each formed with two lugs'16, 16, 18, 18.

17 represents a cross-bar connected at its ends to complemental lugs 16,18 near the front end of the machine.I

19 represents a similar cross-bar connected to the complemental lu s 16,18, near the rear of the machine. Ighe elevatorbed is composed of aplate of metal 20. having thereon fiat ribs21 of any suitable materialof paper.

andV shape,4 the ribs being splaced a art a 'sufficient distance toreceivel t e mem ers of the grid hereinafter described. To the front pfthe under side of the plate 20 are secured two lugs or boxes 22, looselyarranged? upon the shaft 13. V 23, 23 represent two boxes secured totherear'underl side of the plate 20 and loosely arranged upon thecomplemental shaft 1'3.r

Av represents alscrew-threaded shaft having bearings inthe plates-10 ande uippedat each end with a hand-wheel 31. he screwthreads 32 of theshaft 3 0 engage comil'enientalscrew-threads in a nut Y33 secure on theunder side of the plate 20. By means of the hand-wheels 31 and describedarrangement ofthe elevator' bed with the 4shaft 30 and shafts 13, theelevator platform can be adjusted sidewise to properly position -a pilehe power device 3 (Fig. 2) drivesI ashaft 40 having on its end a beveledgear 41 meshing with a beveled'gear 42 rigidly mounted upon a screw 44arranged in the righthanc'.

guideway 12 (see ,Fig/6). 45 represents a sprocket'gear fast on'thescrew 44 `below the gear 42. 46 representsl a complemental sprocket gearfast on the screw 47 that is arranged in the guideway A12v oftheopposite column 4. 48 represents a sprocket-chain connecting twogears 45, 46. B this means the screws 44 and 47 are driven in unison andin the same direction, the scr ew 44 engagin the lugnl at the right handend of the mac e, w e the screw 47 engages the lug 11 at the left handend of the machine, thereby providing means whereby the e cvato tweenthe ribs 21, the-slats 51 elevatorplatformvis `raised and lowered at anydesired height within the capacity of the screws.

Referring to Fig. 14, 51 represents a series of metal slats suitablyconnected to the head 52, the slats 51 and head 52 constituting a grid,the slats 51 being of such size and so s' aced aart that :they willslide upon the r' ed 20 on top of' tle latform beeing of the saine orless thickness than the ribs 21. As shown, the head 52 is formedwith abevel 53, and in Fig. 17, the bevel 53 below the plane of the slats 51is formed with a vertical shoulder 54, the bevel 53 beingxsuperimposedover the shoulder 54, when t e parts are in their operative osition,(see Fig. 4).

Referring to igs. 5, 10,.,11, and 12, 60 represents a spring catch orbar supported on the rear lunder side of the framework of the mechanisml1, and extending'crosswise ofy said framework. The art 61 just abovethe latch 60 is formed with a'vertical shoulder 62. represents a comlemental latch connected tothe under si e of the framework-supportingmechanism 1 near.

the front, by means of castings'or lugs 71.

and 70 being in the same plane.

As the elevator carries up its load or pile ofvv sheets 100,thefmechanism 1 .se arates the sheets one ata time, delivering t ein tothe feeding mechanism, not shown, the feedn action of the elevator andthe '.mounting o the seplarating mechanism being so arranged that t erfeeding action of the elevator does not interfere with the separatingmechanism. As the elevator rises the bevel 53y while the beve comes intoengaglement with the latch 70,'

ends ofthe -slats 51,

(see Fig. 4) come into engagement with the latch 60, the upper sides ofthe latches 60 Theme. tion of the platform lupward tends to move thelatches 60 and 70 away from each other.

As the platform passes the latch '60 the latter.- snaps under thebeveled ends 75 of the slats 51, (see Fig. 12). Further movevment of theplatform (permits the latch 70 to snap under the hea 53 and shoulder 54ofthe grid (see Fig. 10). In Fig. 11 is shown the position of the partswhile the` latch 60 is snapped under'the beveled ends 75 of the slats51.

By the arrangement shown in Fig. 4, and also Figs. 5, 10, 11, 12, 14,15, 16, and `17, the shoulder 54 on the head of the gridcooperating withthe latch 70, while the bevel ust before theA latch 70 snaps under theys oulder 54 and p' 75 at the other end' of the grid is acted uponby thelatch 60, ment, or movement of the ridtoo far to the left (see Fi s 10and 12 ment ofthe gri too far to the right, orl in the oppositedirection, by reason of the action of the latch 70, is prevented by theBy the described construction, .the grid is maini shoulder 62 -(seeFigs. 12 and 3).

tained against longitudinal displacement, so that wheny it has beenforced to the required height, yit would be supported at one end by thelatch 60, and at the other end by the'latch 70. The'latches-,ESO and 70are shown as bars running across the machine.

prevents longitudinal move- 'p The moveics Having thus. explained thenature of my invention and described a way of constructling and usingthe same, thou h without atorms in which tempting to set forth all ofthe it may be made, or allzof the modes of its use,

what I claim and desire to secure by Letters Patent is 1. In a machinefor feedin independent sheets of paper, an elevator p atform, a grid comrising a series of connected slats, yielding atches` tionary in itsvelevated moval of the elevator atform.

v2. In a machine of the character specified, an .elevator platform andvmeans for o erating the latter, a removable grid the s ats of which areadapted to lie in complemental recesses in said latform, two opposedlatches located near t e u per end o the travel of the platform, andetween which the grid is arranged to retain the grid staosition afterthe rel lat c es, each arranged below a-sho arranged to be carried, andcomplemental members on the grid and'framework to prevent ldis lacementof the due to the action of t e latches.

3. In a machine of the character specified, an elevator platform formedwith grooves, a removable grid adapted to have its slats arran ed insaid grooves, a pair of plpiosed er, a shoulder u on one end of saidgrid whereby as saidgri is forced between said latches the latter areconstrained to sna under the grid and the latter is held againstsplacement due to the action of the latches. A

4. A grid comprising a series of slats, a

head to which one end of each slat is secured,

` said head being formed with avertical and a superimposed surface orpart.

5. In a machine of the character specified, an elevator mechanism, anelevator platform, a grid adapted to be carried thereby, latches forholdingsaid grid independent of the platform and provisions on the gridand framework to revent movement of the grid 'when engaged y saidlatches.

6. In a machine of the character specified, an elevator platform andmeans for o erating the latter, a removable grid, the s ats of which areadapted to lie in complemental recesses in said platform, `two opposedlatches between which the grid is arranged to be carried by theplatform, and means on the grid and'framework for causing one latch atatime to snap under-said grid. 7. In a machine of the characterspecified, an elevator platform and means for operating the latter, aremovable grid com rising a head and a series of independent sats'confined only at one end, a 4pair ofo posed latches,- one of whichis formed of albar of corresponding length to thewidth of the grid, andprovisions whereby as the grid passes the lane of said latches they aresnapped un er said 'd, the free ends of the slats being en aged il; thesaid bar.

8. In a mac e of the character specified,

an elevator platform and means for operating the latter, a removablegrid composed of a head and a series of independent slats, eachconnected at one end to said head, the said head and slats being formedupon their top side with bevels, .a dpair of opposed latches beveled ontheir un r sides, and provisions whereby the said rid is carried by theplane of said latches am? the latter are snapped beneath the rid tosustain the latter upgn the Vwithdrawa o'f the elevator latforni.

In testimony whereof I ave affixedv my' signataire,` in presence of two.witnesses- Witnesses:

H. L. Romanas,- E. BATOHELDER.

